Automatic type-writer actuator.



L. R. ROBERTS.

AUTOMATIC TYPE WRiTER ACTUATOR. APPLICAHON FILED DEC. i3. 19H].1,1473%42. Patented July 20, 1915.

6 SHEETS-SHEET Fig. 1.

Jiwmisw;

L. H. ROBERTS.

AUTOMATIC TYPE WRITER ACTUATOR. I

APPLICATION FILED D5013, 1910.

- Patented July 20, 1915.

6 SHEETS-SHEET 2.

hlYAQ.

wwf

L. R. ROBERTS.

AUTOMATIC TYPE WRH ER ACTUATOR.

APPLICATION FILED DEC. 13, P910; y 1, 14 7,4 42, I Patented July 20,1915.

6 SHEETSSHET 3.

L. R; ROBERTS.

AUTOMATIC TYPE WRITER ACTUATOR. APPLICATION FILED DEC-13.1910.

L147A42. Patented July 20, 1915,

Fig. 425.

6 SHEETS-SHEET 4.

[I ave/2.10;

L. R. ROBEETS.

AUYOMATIC TYPE WRHER ASTUATGR.

APPucMmH man 02c. 13. 1910.

s l gag'y aglg g V mama July 20 1915.

6 SHEETS-SHEE? 5.

Li li-IAN B. ROBERTS, OF RUTHERFORD, NEW JERSEY, ASSIGNUE, 1'0UNIQEREVSQIE TYLEE'WRITER COMPANY, 01 NEW' 1 03K, N. Y., A COREOHATEQN013 DELH AUTGMATIC TYPE-W'RITER ACTUATOR.

Specification of Letters Eatent.

Faitente d duty 2 3W Application filed December 13, 1910. Serial No.597,118.

TocZZ whom it may concern:

Be it known that I, LYMAN Pt. Romans, a citizen of the United States,residing in Rutherford, in the county of Bergen and State of Newdersey,have invented certain new and useful Improvements in AutomaticTypeWriter Actuators, of which the following is a specification.

The present invention relatesto an automa tic operator for typewritingmachines.

The invention in many of its features has particular reference to an ope'ator such as disclosed in Patent No. 1,109,597, dated September 1,191%, granted jointly to Lyman R. Roberts and Charles L. Davis.

The operator of the aforesaid patent comprises a system of devices foroperating the keys, of a typewriter, and also comprises mechanism foreffecting the carriage return and line spacing operations of thetypewriter, and for effecting certain other operations. The variousparts of the operator are in general controlled in their action bysuitable master controlling devices, progressively feed or driven withinthe machine. In the aforesaid patent, the master controlling means isshown a perforated sheet fed over a tracker board from which there arepneumatic connections to the various operating parts. There are showntwo such master sheets and tracker boards, and means for causing thesheets to operate one at a time, alternately or intermittently, so thatthe ma chine may be under the control of one or the other master sheet,as the occasion requires. Ivieans are provided for shifting the controlfrom one sheet to the other. and the shifting is preferably effectedautomatically by means of the sheets themselvesso that when one sheethas done its workit may present a suitable perforation to its trackerboard whereby its own action is caused to be discontinued, and the othersheet caused to he come active. The purpose of the two sheets is toutilize one sheet as a master sheet which represents a subject mattercommon to all the writings to he produced; the writing of the body oi acircular letter being illustrative of the function of such a mastersheet. The other sheet is used to control the Wl'llling of certainmatter special to each letter, such for instance as the addresses of theletters represented by the other sheet. in nor inai operation the-rfore. the address control sheet is the one first acti e, and thereafterthe sheet which represents the body or" the understood that so far asmany features of the present invention are concerned, the control ormaster devices may be other than perforated sheets, and that the controlmay be other than pneumatic.

The machine is preferably driven from a continuous source of power wlich is alter.

nately connected to and disconnected from the feed rolls of the twosheets. here the control is pneumatic, as in the embodiment of theinvention hereinafter to bedeserihed, the power pneumatics are operatedby means of bellows (shown as exhaust bellows), also connected to thesource of power, and operating when. placed in communication with thepower pneumatics to collapse the same, and so operate the connectionsfrom the power pneuniatics to the mechanisms. In the said patent thefeed rolls of the master sheets are shown as permanently geared to thedriving connections from the source of power, but the rolls are intendedto revolve without feeding the sheets except when the sheet is pressedagainst the reed roll by an idler or pressure roll, which" latter ismovable to and from the feed roll to render active or to silence thecontrol sheet, as the case may be. In the present invention, proision ismade to have the driving c nnections in gear with the feed rollsonly'when the master sheet is to be active. ihe feed roll can only movewhen the driving gear is moved into engagement withit, and at such timesthe sheet and feed roll. must more to The v driving gear, and means forshifting the same into and out of engagement with the feed rolls.

In the machine of the present invention, the iaper for use in thetypewriter is prefcrab y held in a magazine from which itmayautomatically befed to the typewriting machine by means such as shown inPatent No. 1,132,034, ranted March 16, 1915, jointly to me an Charles L.Davis. When the paper in the magazine is exhausted, the attendant hasheretofore .stopped the machine to replenish the supply.

It is an object of thepresent invention to provide means forautomatically stopping the machine upon exhaust of the paper in themagazine, thus rendering unnecessary the presence of an attendantforthis purpose. The stoppage of the machine in the embodiment of theinventionhereinafter shown is effected from the magazine; and comprisesmeans, the operation of which is controlled by the paper, so that whenall or substantially all of the paper is exhausted, the stopping deviceis permitted to operate. This stopping means is shown as a pneumaticcontrolled by an air connection opening into the magazine. which openingis closed by the paper until the same is al removed, whereupon airenters the pneumatic connection to operate the pneumatic. Other papercontrolled means may within the scope of the invention be substitutedfor the pneumatic; the control may be mechanical or electrical, and maybe effected in various ways.

It is also an object of the invention to provide means whereby themachine may be automatically stopped at the last address on the addresscontrol device or perforated sheet. The stopping device which isconnectcd to the magazine to stop the machine at the last sheet of pa oris also conveniently used to stop the machine at the last address; andfor this purpose has an operative connection to the address controldevice as well as to the magazine. When the stop ing device isapneumatic,and the control device is a perforated sheet registering witha tracker board. the connection to the stopping device from theaddresscontrol-device may conveniently be an air tube from a duct in theti acker board of the address sheet.

It sometimes happens that after-the last sheet of pa er in the magazineis moved, and in moving effects the operation of the stopping device.there is nevertheless some matter to be written on that sheet; If suchis the case, then the actual stopping of the machine should be delayed,or if it has occurred, then the operation of the machine should beresumed .long enough to complete the last page. :This situation commonlyarises if theatepping device is controlled from the magazine, becauseafter the last sheet has left the magazine, it has yet tobe fed around.the platen before the machine is through with it. Of course, themagazine may be refilled after the machine has stopped and-before thelast sheet of: the previous supply is written, but such replenishmentmay not be convenient or desirable.

The present invention provides means for rendering ineffective thestopping device so that the writing of the last page may be completedwith the ma azine empty. This means, in the form of tie inventionhereinafter shown, comprises a device for breaking the operatingconnection from the stop- )ing device to apower cut-off device. Thebreaking of such connection renders the stopping device ineffective,either to cut off the power in the first instance, or to maintain acut-off of the power, if the stopping device has already operated toeffect the same.

It has been found desirable to render the carriage-return andline-spacing mechanism inoperative when for any reason the power is shutdown, so that upon the resumption of operation of the machine,supernumerary line-spacing operation may not be effected. The manner inwhich unnecessary line-spacing may occur may be exemplified in apneumatically controlled operator such as shown in Patent No. 1,109,597above referred to. The carriage-return and linespacing mechanism istherein shown as controlled by a pneumatic which is caused to collapseand bring the line-space mechanism into operation whenever the pneumaticis connected with the exhaust bellows, upon presentation of a suitableperforation at the tracker board. The control sheet is simultaneouslysilenced, so that the perforation which caused the operation of thepneumatic continues to register with the tracker board duct. If at suchtimes the operation of the machine is discontinued the exhaust isdestroyed, and the pneumatic expands, returning the connections by meansof which it has just effected the operation of the linespacingmechanism. If new the oicration of the machine is resumed, the exhaustis again created, and, as the perforation in the control sheet stillregisters with controlling connections to the pneumatic, the latteragain collapses, andthc line-space mechanism is again operated, althoughno linespacing may wanted at this time.

The present invention provides means for rendering the carriage-returnand line-spacmg mechanism inoperative when the opera- .tion of themachine is to be discontinued,

and for holding such mechanism inoperative until operation of themachine has been resumed, thereby eliminating the possibilitv ofexcessive line-spacing. In the form of the invention hereinafter shown.this feature of invention comprises a device for breaking or renderingineffective the conneclOi llt)

menses tions by means of which the line-spacing mechanism is normallyoperated.

The invention also provides a means for disconnecting the drive ofwhichever control device or perforated sheet may be in operation at thetime the line-spacing mechanism is operated, or of whichever may be in.op eration at the time the machine is stopped upon exhaust of paper inthe magazine, or stopped for some other reason; while at the same timemaintaining the drive of the other control device ineffective, so thatat such times neither control. device can. operate.

The invention also provides a means for rewinding a master sheet whilethe same is within the machine, and for effecting the rewind fromthepower connections of the machine.

Other objects and advantages of the in vention will hereinafter appear.

In the accompanying drawings, Figure 1 is a view in elevation, in crosssection through the frame of the machine, of the assembled apparatus,showing the same in operative relation to a typewriter. Fig. 2 is a viewsimilar to Fig. 1 on an enlarged scale and looking in the oppositedirection, certain of the mechanisms being omitted. Fig.

3 is a view in end elevation of the-assembled.

apparatus looking from the left in Fig. 1. Fig. 4 is a view in sideelevation of certain features of the invention relating p'articu-.

larly to the control sheets, the means for driving the same, and theshifting means for connecting the drive of one control sheet anddisconnecting that of the other. Fig. 5

is a sectional top plan view of the mec anism shown in Fig. 1 on theline 5-5 of F lg. 4, a few parts being" omitted or added. Fig. 6 is aperspective view of the mechanism for operating and for renderinginoperative the carriage return and line-spacing mechanism, and of thedevices for stoppingand for un- 7 locking the machine. Fig. 7 is aview-in side sent the body of the letter, circular or other document tobewritten; it is shown as an endless sheet, and cotiperates with atracks boznd 3. The control sheet 2 is perforated to 1' present thenamesand addresses of the various persons to whom the writings are to beaddressed, or carry any other special matterto be added to the commonsubject.

matter of all the letters which is carried by sheet 1. Sheet 2cooperates with a tracker board situated below the tracker board 3.Sheet 2 is not shown as a continuous sheet, but is wound upon aroll 5from which it is paid oil to the tracker board 4% and thence into achamber 6 in the base of the machine. In the aforementioned Patent No.1,109,597, both control. sheets are shown endless. The delivery roll 5for the address sheet is one of the features of the present invention,but an endless address sheet may ne ertheless be employed in a machineembodying certain of the other features of invention presently to bedescribed. Partition members 7 and 8 mounted in the frame 9 of themachine serve to prevent entanglement of the control sheet 1 with otherparts of the apparatus, and member 8 serves to separate the control ormaster sheet 1 from the address control sheet 2.

The master sheet 1 is led over the tracker board 3 between an idler orguide roll 10, and the feed roll 11 which is rotated to feed the sheet.Below the idler 10 is a rod 12 over which the sheet 1 also passes. Therod 12 is provided with retaining flanges 13 ad justable longitudinallythereof. The flanges 13 keep the sheet in correct alinement with thetracker board, and are adjustable to the width of the sheet, as well asto compensate for any expansion of the sheet due to moisture, etc. It isunnecessary to have retaining flanges on the feed roll 11 or idler 10;the guiding, so far as the proper alinement of the sheet is concerned,is done by the flanges 13, and this flanged rod 12 being at a distancefrom the tracker board controls the alinement of the sheet much morereadily than couldbe done by means of flanges on the feed roll, andsaves the wear on the paper which is incurred by the use of flanges on'the' feed roll. The address control or master sheet 2 is led over itstracker board 4 between its feed roll 14 and an idler 15 similarrespectively to the feed roll 11 and idler 10 for sheet 1. Below theidler 15 is rod- 16 having adjustable flanges 17, and serving to controlthe alinement of sheet 2 in. the samemanner that flanged rod 12 controlssheet 1.

- It will be understood that the master sheets 1 and 2 are not inoperation or being driven at the same time. The master sheet 2 controlsthe operation of the typewriter to address the letter, during which timethe sheet 1 for writing the body of the letter is silent. T l'ie addresssheet having performed its function is then silenced while the sheet 1operates to Write the letter, after which sheet 1 is again silencedsheet 2 again brought into operation, according to principles in theco-pending application above raft red to.

Hie power for feeding the master sheets as well as the power foroperating the pneumatics and other mechanisms is shown 11']. thedrawings as derived from a power shaft 18 carrying a pulley 19 by meansof which it is driven from any suitable source of power by a belt 20.Any suitable driving connections to the shaft 18 may be substituted forthe belt 20. The shaft 18 rotates continuously while the machine is inoperation. It drives the feed rolls 11 and 14 through the followinconnections: Fast to the shaft 18 is a bevel gear 21 nieshim with abevel gear 22 fast to a vertical shaft 23. Fast to the upper end ofshaft 23 is a bevel gear 24 meshing with a bevel gear 25 on a horizontulshaft 26. Also meshing with car 25 is a bevel rear 27 on an inclineds1aft 28 (shown on y in part in Fig. Near its 11 iper end shaft 28carries a friction roll 29 which engages the face 30 of a friction wheel31. The face 30 is of any suitable friction material such as leather;and the roll 29 is adjustable alon the shaft 28 to vary its distancefrom tie axis of the wheel 31 so that the speed of the wheel 31 maybeadjusted to the speed desired for drlvmg the master sheets 1 and 2.Wheel 31 is mounted on a stud shaft 32 fast to which is a pinion 33 inmesh with a gear 34 on a shaft 35 which latter has hearing at each sideof the machine in bracket arms 36. Fast to the shaft 35 is also a pinion37 which in one position of the arms 36 meshes with a inion 38 on thefeed roll 11 of the control s eet 1. The arms 36 are fast to a rockshaft 39 which is carried by brackets 40 and which is in alinement withthe shaft 32; and the arms 36 may be rocked to lower and lift the shaft35 so as to move the inion 37 into and out of enga ement with t e inion38 on the feed roll, t us making and making the driving train of thelatter at will. In the position of the arms 36 shown in Fig. 1. thepinion 37 is in mesh with the pinion 38, and the feed roll is beingdriven from the pinion 37 to feed the control sheet 1. In Fig. 4, thearms 36are shown in position such that pinions 37 and 38 are out ofmesh, and at this time the control sheet 1 must be silent. Since thearms 36 swing on an axis which coincides with the axis of the shaft 32,the pinion 33 is in mesh with gear 34 whatever the position of the arms36. Or. the shaft 35 with the pinion 37 is a roll 41 which, when thepinions 37 and 38 are in mesh, holds the control sheet 1 against thefeed roll 11 to insure the proper feed of the. sheet; and which alsomaintains the proper relation of pinions 37 and 38.

The friction wheel 31 through which the feed roll 11 is driven from theinclined shaft 28 is also a pulley which by means of a belt 42 drives apulley 43 on a stud shaft 44 similar to the shaft 32 but located andintended for driving through intermediate gearing the feed roll 14 ofthe address control sheet 2. Shaft 44 carries a pinion 45 meshing with agear 46 on a shaft 47. Shaft 47 is carried on arms 48 attached like arms36 to a rock shaft 49 supported in alinement with the shaft 44. last toshaft 47 is a pinion 50 adapted to be moved into and out of mesh with a.pinion 51 on the feed roll 14 of the address control sheet. Shaft 47also carries a roll 52 adapted to bear upon the address control sheetwhen pinions 50 and 51 are in mesh, for the same purpose as roll 41. InFig. 1, the arms 48 are shown as supporting the pinion 50 out ofengagement with pinion 61 so that the address control sheet cannot bedriven, whereas in Fig. 4, the arms 48 have been moved to connect up thedrive for the address control sheet. It will be noted from an inspectionof Figs. 1 and 4 that when the control sheet 1 is being driven, thecontrol sheet 2 is idle, and vice versa.

From the. foregoing it will be seen that when the machine is inoperation there is a continuous drive of the parts from the power shaft18 to the pinions 37 and 50, which are the pinions adapted to be movedinto and out of enga ement with the feed roll pinions 38 and 1respectively. The feed rolls 11 and 14, are however only driven whentheir pinions 38 and 51 respectively mesh with pinions 37 and 50.Heretofore the feed rolls ave been driven continuously, and the drive ofthe control sheet has been governed by the pressure of an idler againstthe feed roll. The removal of the idler has been relied upon to cause adiscontinuance of the feed of the control sheet. It has occurredhowever, particularly with heavy control sheets, that there has beensufficient friction between the feed roll and the control sheet, evenwith the idler removed, to cause movement of the sheet at a time when itshould be silent. In the structure above described, however, there canbe no drive of the control sheet when once the driving gear isdisconnected from the feed roll. The pinions 37, 38, and 51 have finesharp teeth so that there may be a rompt and certam pick-up of the feedrolls by the drivmg plnions.

Since as heretofore pointed out, the two control sheets are not inoperation at the same time, and one is always set to be operated whenthe other is unset, there is employed a device whereby the disconnectionof the feed roll of the control sheet 1 from the driving train isaccompanied by the connection to the driving train of the feed roll ofthe control sheet 2, and vice versa. One of the arms 36, which supportsthe shaft 85 of the driving pinion 37 is integral with a lever arm 53.serving as a means to rock the arms 36 and .arts supported thereon.S1m1larly one o the arms 48, on the perforations in the active controlsheet, and thus operate the keys of the typewriter. The letter spaceaction of the typewriter is eil'ected by the usual drum spring andescapement mechanism without the aid of the pneumatic operator. Whenhowever the end of a line is reached, or whenever it is de sired tocommence a new line, the carriage 187 must be returned against theaction of the carriage spring. his'loperation and the line-spacingoperation which ordinarily accompanies it, are accomplished by thepneumatic operator by means which for the most part are the same asdisclosed in Patent No. 1,109,597, above referred to.

The carriage is returned b an arm 88 mounted on a frame 89 whic alsocarries a half nut 90 (see Fig. 2) adapted to be swung into enga ementwith a screw or worm 91 on the s aft 26, which it will be recalled, iscontinuousl revolved by the pinion 25 driven from t e vertical shaft 23.Ihe screw or worm 91 extends substantially across the front of themachine and revolves in such a direction as to move the half nut in thedirection of the return of the carriage when the two engage. The frame89 is mounted to swing on a rod 92 as a pivot, and also to moveongitudinally onothe rod 92. The arm 88 is so shaped as to en age thecarriage-return and linespacing ever or mechan1sm 188 of the carriage.The normal angular position of the frame 89 on its ivot rod 92 1s asshown in Fig. 2 withthe alf nut out'of en agement with screw 91. This isthe angu ar position of the frame 89 when'the carriage is being fedforward; and the carriage by pushing against the arm 88 during sueforward feed moves the frame along t e rod 92 with it. For holding theframe 89 in any desired angular position on the rod 92 and for swinginit on its pivot, the frame has an arm 98 w iich carries rollers 94 toengage a rod 95, parallel to the rod 92 and supported on arms 95" (seeFig. 0) which also swing on the rod 92 as a pivot. The weight of thecontrol sheet drivin rolls, and attached parts, normally ho ds the rod95 with the frame 89 in Fig. 2 position, by the following means: 1

The rod 95 is connected by a link 99 with a bell crank 97, pivoted onone of the arms 30 which support the roll 41 and driving gear 37 for tiefeedin of the control sheet 1. The lower arm 0 the bell crank 97 isconnected by a link 98 with a lever arm 99 pivoted on the arm 48 whichcarries the roll 52 and driving pinion 50,for the address control sheet2. The lower arm of hell crank 97 and the arm 99-are both turned oroffset at 100 to protrude below their respective supporting armsflid'and48. The length of the link 95 iisflfad usted that when the arms 36 areset in t e position shown in Fig. 2, for the feed of the control sheet1, the offset portion 100 of lever 97 lies immediately under the arm 30,and, by reason of the weight imposed upon the latter, holds link 90 frommovement with the frame 89 such as would bring the half nut to the screw91. At this time the arms 48 at the address control roll are in suchposition that were it not for the arms 30, the bell crank 97 could berocked freely by the link 96. When however, the arms 48 are rocked downfor the drive of the address control sheet, and the arms 86 are rockedup to silence the control sheet 1, it will then be arm 48 acting throughthe link 98 which holds the bell crank 97 and link 90 in lace. The frame89 and half nut are there ore seen to be held by the link 90 in theposition shown in Fig. 2 during the feed of the carriage, no matterwhich control sheet is being employed.

In each control sheet, at a position indicating the end of each line ofwriting, and wherever a new line is required, there are perforationswhich register with a duct in the tracker board to control a powerpneumatic 101 by means of which the frame 89 is swung around its axis 92to bring the half nut into engagement with the worm 91. At such timesthe weight on the arm 30 or 48 is not sufiicient to prevent the movementof the frame 89 with the link 90 and consequently that weight is lifted,thereby disconnecting whichever control sheet has been in operation,from its driving mechanism. This silencing of the control sheet at thetime the carriage is to be returned is natural and proper, as no writingis done during the return of the carriage. The pneumatic 101, whichcauses the carriage to be returned, and silences the control sheet,operates on the frame 89 through mechanism shown in Figs. 2 and 7; saidmechanism consisting of a link 102 connecting the pneumatic to an arm108 on a shaft 104, an arm 10?) integral ,and forming in effect a hellcrank lever with the arm 103, and a slide 100 pivotallv attached to thearm 10."). The slide we is guided on a pin 107. Its under surface isstopped and the steps are connected by an incline 108. While the upperstep 10!) rests upon the pin 107, the end 110 of the slide. 100 is inalinement with the rod 9:), so that when the pneumatic 101 is operated.the slide advances on its step 109 until it strikes the rod 95 and movesthe same with the frame 89 around the rod 92 suiliciently to bring thehalf not into engagement with the worm, and sufficiently to draw thelink 90 far enough to disengage the driving pinion from the feed roll ofwhichever control sheet has been operating. The feed of the controlsheet is therefore silenced with the duct of the pneumatic 101 stillregistering with the perforation which caused the pneumatic to oge'rate. The pneumatic continuing to colthe control sheet feedingmechanism cannot Patent 1 109597 the return of these parts.

at this time return. the frame 89 and attached parts to Fl 2 positionbecause of a locking device heretofore described in said The lockingdevice is in the form of a spring bolt 112 which is mounted in the frameand bears against one of the arms 95 so that when the arm against whichit bears is'rocked by the slide 106, the bolt prings behind the arm andprevents the return of the frame The end of this bolt is however in thepath of the half nut which now returning the carriage and is advancingtoward the bolt. As the return of the carriage coinijileted, the halfnut strikes the bolt, forcing it from behind the a and permitting thelatter, with the frame 89 and all attached parts, to be swung by theWeight of the control sheet driving mechanism around the axis 92 todisengage the halfnut from the Worm and to permit the feed of thecontrol sheet to'be resumed. A. spring 113 may be employed to effect orThe end 119 of the slide 106 having been previously elevated.a the slidedoes not impede the-rcturn swing of the rod As soon as the feed of thecontrol sheet is resumed. the duct of the pneumatic 191 is closed by thecon rol. sheet and the slide 10% returns to normal "oosition.

l The arm 83 on the frame 39, as heretofore stated, not only returns thecarriage hut moves the line-spacing lever to line-space the platen 189of the tjvpewriter. lt may he desired to line-space several timeswithout any Writing, as for instance between the closing of the coilyor" one letter and the address of the next letteri in such event therewill be several consecutive onerations oi the ymeurnatic 101 eilected bysuccessive perforations in the control sheet. Even though the frame isnot moved back by the letter feed of the carriage, it will neverthelessbe thrown slightly hack the line-spacing lever spring the pressure onthe spacing: lever 1S8 relieved by the disconnection oi the hall" illthe WOIIH, so that even Where line-spa g ner'foraton in mediateiyfollows another, there Will he suliicient movement the arm 88 with theframe 8%! on each occasion to eii'ect an ofon the lin-53210l1lf lever.

i control. or master sheet bar or slide guided on a pin 121.

123. Vfhen the step 122 rests on pin 121, the slide 1s in alinement witha pin 1% on the 55, and to travel over the lower portion of the canpermit-ting the arms to fall with the punch 37 and the latter to engagethe pinion 38 on the feedroll 11 of the control sheet 1 so as to drivethe same. Simultaneously the pin 60 at the lower end of the lever 58moves up the cam surface 56 of the lever 54 and rocks that lever in suchmanner as to lift the driving pinion 50 out of engagement with theglinion 51 on the feed roll of the address control sheet 2, so that theaddress control sheet is then silenced. The lever 58 is maintained inthis position by the pin 5-0 in the seat 61 of lever 5 1. slide bar 120however continues to move for- Warc until the lower step 123 on the.saine cliinhs up onto the pin 121, with the end 125 of the barprojecting over the pin 12% the lever 58, as shown in Fig. 1. In thisosition the her 120 and the lever 58 remain during the operation of thecontrol sheet 1.

When the body of the letter has been Written from the control sheet 1 sothat the machine is ready to -Write the next address on the addresscontrol sheet 2 for the fol lowing letter, a perforation in the controlsheet- 1 opens a duct to a tuhe 126 leading from the tracker board 3 tothe primary pneumatic 76 and in a manner heretofore described inconnection with Fig. 3 causes the collapse of the power hollows .8. Thepower bellows '78 is connected to a bell crank lever 12? and the latterto a slide bar 128 similar to the bar 120" T e bar 128 is' guided on apin. 129 and in the position shown in 1 in alinenient with a pic 1130 onthe lever l /hen the power bellows 78 collapses, the bar 128 moves intoengagement with the. pin 130 and rocks the The A lever 58 from theposition shown in Fig. -1 to the position shown in F ig. .i, therebydisconnecting the drive of the control sheet 1 and connecting the driveof the address control sheet 2. By reason of the fact that at the timethe pneumatic 78 operates, the end of the bar 120 is abovethe pin 124 onlever 58, the movement of the lever 58, when acted upon by the bar 128,is not obstructed by the bar 120. As soon as the address sheet resumesoperation, the perforation in the address control sheet, whichoriginally opened the duct to the bellows 118, passes that duct, and thelatter is closed, thereby causing the bellows 118 to expand and the bar120 to be drawn back to its Fig. l position, where it remains until thecontrol sheet 1 is again to be operated. In a like manner the end of the'bar 128 is held on pin 129 above the pin 130 on the lever 58 so as notto impede the movement of the lever 58 when the latter is moved .by thebar 120. Resumption of the operation of control sheet 1 closes the ductto cause the bellows 78 to expand and return the bar 128 to Fig. 1position. When the operator leaves the machine, and when for otherreasons it is desired to discontinue the operation of the machine, thedrive of the exhaust bellows -66 may be discontinued. Whenthe-exhaust/bellows 6566 are silenced, the vacuurn or partial vacuum inthe chambers .75 (see Fig. 8) through which the power neumatics areexhausted is destroyed, an :any power pneumatic which at such time isheld collapsed by the exhaust bellows, is thereupon permitted to expand.

It has been explained in connection with Fig. 2 that during the carriagereturn and platen line-spacing operation the slide bar 106 rests withits lower step 111 on the pin 107 so as not to impede the return swingof the rod .95 with frame and attached parts when the half nut strikesthe bolt 112 on completion of the return of the carriage. It has beenexplained that the slide bar 106 is held forward with its end 110 overthe rod during the return movement of the carriage by reason of the:fact that the control sheet has been silenced by the movement of thelink 06, so that the perforation which operated the pneumatic 101continues to register with the operating duct of the pneumatic 101, andthat so long as this perforation registers with the duct of pneumatic101, the exhaust bellows 6566 will continue to hold the pneumatic 101collapsed.- If, after the pneumatic 101 has been operated to return thecarriage and line-space the platen, and while the slide is held forwardwith its end over the rod 95, the operation of the machine is at thistime discontinued so as to silence the exhaust bellows art-ac, thomoumatir 101 will than expand and draw l)ll0l( the slide 106. When theoperator again starts the bellows 65-66, the pneumatic 101 must againcollapse. because there has been no movement of the control sheet sincethat collapse oi the pneumatic which preceded the silencing, of thebellows (iii-66. and the perforation in the control sheet whichell'ectcd that first collapse continues to register with the duct of thepneumatic 101. The second collapse of the pneumatic 101 upon rcsumptionof the bellows 65-436 causes the slide 106 to move forward again, and.unless provision to the contrary is made, again to strike the rod, thusell'eetinga second line spacing movementof the platen. This secondline-spacing operation is not desired, and in the present invention isprevented by the following means.

In Fig. 6, there is shown a finger piece 135 mounted on a rock shaft 136to which is attached a bell crank lever 137. One arm of the bell cranklever 137 carries a pin 138, adapted, when the finger piece 135 isturned clockwise or to the right, to engage and depress a lever arm 139fast to a rock shaft 140. Also 'fast to the rock shaft 110 is a leverarm 141 to the end of which is Hivotally attached a pull bar or rod 142.he bar 142 is slotted at 143; and, through the slot 143, extends theslide 106, as shown in Figs. 6 and 7. Whenever the operation of theexhaust bellows 65-66 is to be discontinued, the finger piece 135 isfirst turned to the right so as to cause the lever arm 141 to lift therod 142 until the lower wall of the slot 143 comes into engagement withthe slide 106. This operation of the linger piece 135 and the subsequentsilencing of the bellows are usually effected after a line has beenwritten and just after-the pneumatic 101 has been operated to return thecarriage and to line-space for the next line, but before the controlsheet is again placed in operation to connnence the next line. The end110 of the slide 100 therefore still remains above the rod 95. with thelower step 111 of the slide 106 resting upon the pin 107. The fingerpiece 135 is now turned to the right to raise the bar 142 into contactwith the slide 106. The operation of the exhaust bellows may then bediscmitinucd. The pneumatic 101 expanding, upon silencing of the exhaustbellows, causes the slide to be drawn back as heretofore described, butthe slide cannot new fall with its step 100 on the )in 107, because itis held elevated by the air or hanger 142. It therefore assumes theposition shown in Fig. 7, in which it is held entirely out of contactwith the guide pin 107 and although drawn back, is hevcrthcless heldwith its end at a higher elevation than the rod 05. Resumption ofoperation of the bellows 06 causes the pneun'mtic 1 1 to expand. but theslide 100 in romim: l'or ward this time cannot staike the rod an besheet1; connects, by means of the link 98,- with the lever 99 on the arm 48which supports the cause of the elevation at which it the hanger 14.2.No lineof the pivoted frame is by mere discontinn ll H . tent end ofwhich is attached to the bell crank 97 (see Fig. 2) on the arm 36 whichsupports the driving pinion 37 of the control The lower arm of the bellcrank driving pinion of the address control sheet, so that the link licfil' is therefore connected to both levers 97 and 99; and, as theselevers have offsets 100 for engaging the supporting arms of the drivingpinions of the respective control sheets, Whenever the link 144 draws onthe bell c nnk 9'i,'it disengages the driving gear from whichevercontrol sheet feed roll has beenin operation. When, therefore, thefinger piece 135 is turned to the right it not only silence the carriageand line-spacing mechanism but else disconnects the drive of the activecontrol sheet. Operation ofa control sheet at this time is thereforeimpossible.

In order that the bell crank 97 maybe rocked by the link-144: withoutcausing the carriage-return mechanism to be operated by the link 96,there is a slot 190 in the boil crank 97 where the latter engages thelink 96', By reasons-of this slot the'link 96 rezneins stationary-whenthe bell crank is rocked by the link lik similar slot 191 permits thebell crank 9'? to be rocked by the link Without movement of the link144C: otherwise the link list would operate to ren- -der thecmriage-retnrn mechanism inoper ative at the very time it is desired tooperate said mechanism.

It has been stated that the time for operating the finger piece 135 todisconnect the drive of the active control sheet and to renderinoperative the carriage-return and line-spacing vmechanism, ispreferably justafter the control sheet has operatedthe onew matic 101 toreturn the carriage. The 1 nger piece 135 may however be operated at anyother time so that the bellows can be silenced whenever desired. Thefinger piece 135 is not however ordinarily operated when a line isunfinished for the reason that at first upon resumptionot thebellows'65-66, the en haust may not be at its highest effectiveness andthe printing may be weak and'uncertain,

thereby spoiling the appearance of the line of writing. y

it has been stetedthat one of the principal tor rendering thecerriagereturn and line-spacing mechanism inoperative before silencingthe exhaust bellows, is to prevent e second and undesired spacingoperation. There is however another undesirable pos sibility wh ch isavoided by so rendering the carriage turn and line-spacing mechanisminoperative at this time. Assuming that the. finger piece 135 hasbeen-operated after pneumatic 101 has been operated fronithecontrolsheet to return the carriage, the carriege nevertheless completesits return inovement with the frame 89 and half nut before coming torest, because the rotation of the worm 91 is not silenced by the fingerpiece 135. If after this operation, the exhaust bellows 66 is silencedand no hanger 1A2 is present to retain the slide 106 in elevated 8position, the pneumatic 101, heretofore stated, on expanding causes theslide 106 to drop behind the bar 95, so that on.,re-- sumption of theoperation of the bellowsward and strikes the rod 95, moving the iattersnfliciently to bring the half not in en gagement with the driving worm91. The worm immediately carries the half nut again to the bolt 112,causing the swinging frame to bev unlocked and to be subjected to theaction of the spring 113 and to, the draw of] the link 96 due to theWeight of the driving roll of the contact sheet. It may however be thatat this time the exhaust action of the bellows 65-66 hes not becomesufiiciently efi'ective to completely collapse the pneu niatic 101, sothat the rod .106, instead of traveling farenough forward to bring; its.105

lower step 111 onto the pin 107, moves only sufticientlyto strike therod 9-5 and unlock the frame, and remains with its end in the path ofthe rod 95. The rod is therefore thrown by spring 113 or link 96,against thmicl-f end of the slide 106, and may vibrate in such r mannerto throw the half'nut in and out of the worm, thereby subjecting theappsratus to possible inpiry. This inefiective,

part movement of the slide 106 may be a rare 115 occurrence, but istotally avoided where the slide is held elevated by means such asthehanger 142.

The spring 113 has been described as a spring to effect and assist inthe return of 52s crank 97. Qtherwise the-drop ofthe' driving gear intoengagement with the feed ten 6566 and consequent collapseofthepneiiinetic 191, the slide 106 again comes tor-" It is advisablehowever tohave a the machine v has 1 or ole ix"- iever srni one in dog.5 as elv so as to hold these parts t he position to "which they mayhave been (i if the finger piece. The shaft g I preferably carries onin- {if} ich cooperates with 151 mark --'s on the frame of the machine Ii an, snri.Unic-elr to inv eoiii'ti n of the machine. The 1% when at Uriindicates ie iiornici or operative condition of the '"cchiue; when at.Ofi indicates the posicii to which the finger piece is turned to renderthe carriage return mechathe machine is in condition to l inst addresson the address sore been. mentioned the oi rest 2 paid off of a roll 1:possingthe trucker hoard is to a receptacle 6 in the base of iihere thelast address on the us reached the trecherhoard, eiesire i to l'eWiIKiact c ,this reivini'iing iii the 2 e e ecteci cs foliows Moruit- 1 theshaft "with roll is a'puliey 161 a bet 162 with a pulley puiiev is fastto a shaft 1641 which 1 swinging bracket 165. 76 on the frame of themachine 16] having an operating handle of the lever 16'? is ofi Fig. 3)so that when the r51 swirgs the bracket 165 in such to bring a frictionsurface E69 1 1 cf, intoengagement with the tissue of xvii-h the heliows'55 from the power elicit 18. The is ti'icrei'cre turned. by the beltvcotion and its various features. It iviii of course he understoodhowever that this a ruins may be greatly modified within tile ofinvent-ion, particuiarly the cities of Wfili known mechanical quivei forthe various operating" and i mechanisms and parts'thereof.

I v l i'iuvuig shus described my invention, I

e the drive of the control sheets" inonerative; when at ."ijniocirinclircciicci the left (see Fig. 1) it he cocci-stirs described.embodies the incoils for each. roaster sheet, a continuously driven Ydriver for each feeci roll, a continuous source power in connection withboth of solid rivers, and means for bodily shifting said ri'v'ers intoand out of operative relation to (i 71h feed roiis.

2 An automatic operator for typewriting nu: hines, comprising type-keyactuating means, ii muster sheet "for controlling the operation of thekey actuators, means for feeding the muster sheet, a continuously drivendriver for said feeding means, a continuous source of power inconnection with euici driver, and means for bodily shifting said (iriverinto and out of operative relation to thesheet feeding means,

3. An. automatic operator for typewriting machines, comprising typo-keyactuating means, two muster sheets for controlling the operation of thekey actuators, means for .fceciingz; the master sheets, a continuouslydriven driver for each of said feeding means, a continuous source ofpower in connection with said drivers, and means for bodily shiftingsaid (irivers into and out of operstive relation to the sheet feedingmeans,

4. An automatic operatorfor typewriting machines, comprising type-keyactuating means, two muster sheets for controlling the operation of thehey actuators, a feed roll for each muster sheet, u continuously drivendriver for each feed roll, a continuous source of power in connectionwith both of suicl drivers, and means for bodily shifting said driversone ate time into and out of operative relation to the feecl rolls.

5. An automatic operator for typewriting inz'ichines, comprisingtype-key actuating means, too muster sheets for controlling theoperation or the key actuators, a feed roll for each Iii-aster sheet. acontinuously driven driver for ouch feed roll, a continuous source ofpower n constant connection Witlrboth of suirl drivers, and means forho-(lilv shifting said drivers alternutelv into and out of operativerelation to the feed rolls.

6, An automz tiooperator for t-yp'eiviiting machines, comprisingtype-key actuating means, We muster sheets for controlling; theoperation of the key actuators, a feed roll for ouch master sheet, acontinuously driven driver for each feed roll, a, continuous sourceoperation ofithe key actuators, ii ieerl roli for each master sheet, acontinuously ciriven driver for each feed roll, a continuous source ofpower in constant connection with'both of said drivers, means for bodilyshifting said drivers one at a time into and out of operative relationto the feed rolls, and connections to said drivers whereby but one at atime of said drivers may be placed in operative relation to its feedroll.

v 8. An automatic operator for typewriting machines, comprising type-keyactuating means, two master sheets for controlling the operation of thekey actuators, afeed roll for each master sheet, a continuously drivendriver for each feed roll, a continuous source of power in constantconnection with both of said drivers, and means for bodily shifting saiddrivers one at a time into and out of operative relation to the feedrolls, said drivers being so connected one to the other that but onedriver at a time may be placed in operative relation to its feed roll.

9. An automatic operator for typewriting machines, comprising type-keyactuating means, two master sheem for controlling the operation. of thekey actuators, a feed roll for each master sheet, adriver for each feedroll, a continuous source'of power in connection with both of saiddrivers, means for shifting said drivers one at a time into and out ofoperative relation to the feed rolls, a pivoted membersuppoiting thefeed rolls, said drivers being located on opposite sides of the fulcrumof said member, and means I for rocking said member to engage one ata'tiine of said drivers with its feed roll.

10. An automatic operator for typewriting machines, comprising type-keyactuating means, two master sheets for controlling the operatic of thekey actuators, afeed roll for each master sheet, a driving roll for eachfeed roll, a continuous source of power in connection with both of saiddriving rolls, and means for shifting said driving rolls into and out of-engagement with the feed rolls.

11. An automatic operator for typewriting machines, comprising type-keyactuating means, a master sheet for controlling the operation of thekeyactuators, a feed roll for the master sheet, a gear on the feed roll,a continuous source of power, a driving gear in connection with saidsource of power, and means for shifting said driving gear into and outof engagement with the gear on the feed roll, said feed roll and drivinggears. having sharp teeth to permit of quick pick-up of the feed rollgear by the driving gear when the two engage.

12. An automatic operator for typewriting machines comprising type keyactuating means, a master sheet for controlling the operation of the keyactuators, a feed roll for said master sheet, a driving element for saidfeed roll mounted to be shifted into and out of engagement with said Lreed roll, a pivoted bracket on which said driving element 15 supported,and a gear mounted concentrically with-[the axis of said pivotedbracket, said gear being in continuous driving connection with said feed.roll driving element even though the bracket be shifted to disconnectthe driving element from the feed roll. 7

An automatic operator for typewriting machines comprising type-keyactuating means, a master sheet for controlling the operation. of thekey actuators, a feed roll for said master sheet, a driving element forsaid feed roll mounted to be shifted into and out of engagement withsaid feed roll, a pivoted bracket on which said driving element issupported, a gear mounted concentrically with the axisof said pivotedbracket, and a gear mounted on said bracket concentric With said feedroll driving element, and in continuous connection with the first-namedgear even though the bracket be shifted to disconnect the drive of thefeed roll.

14. An automatic operator for typewriting'machines comprising type-keyactuating means, a master sheet for controlling the operation of the keyactuators, a feed roll for said master sheet, a driving element for saidfeed roll mounted to be shifted into and out of engagement with saidfeed roll, a

ing machines comprising type-key actuating means, a master sheet forcontrolling the operation of the key actuators, a feed roll for saidmaster sheet, a driving element for said feed roll mounted to be shiftedinto and out of engagement with said feed roll, a pivoted bracket onwhich said driving element is supported, a gear mounted concentricallywith the axis of said pivoted bracket, said gearbeing in continuousdriving connection with said feed roll driving element even though thebracket be shifted to disconnect the driving element from the feed roll,a cam surface on the bracket, and

a lever engaging the cam to rock the bra clret.

16. An automatic operator for typewriting machines comprising type-keyactuating 'means, a master sheet for controlling the operation of thekey actuators, a feed roll for said master sheet, a driving element forsaid feed roll-mounted to be shifted into and out of engagement withsaid feedi roll, a pi'voted bracket on which said driving element issupported, a gear mounted concentrically with the axis of said pivotedbracket, said gear being in continuous driving connection with said feedroll driving element even though the t be shii ed ,said' feeci roiimounted to be shifted i iisoomloszthe ezh'iving element from the.sorfaco on the bracket, and

foot? roll, oaa lever g "the com to rock the bracket 50 iisero s #1118driving element from time fie roiLsaid dziving elem-ant being mo ed bygravity into engagement Wiih the feed r011 when-so 1? 3 .31 aiiiomatiooperator f0? aypowrit- .ing machines comprising type-key aca'mating'means, a mas-oer she'e: for ooiit toii ag the operation of the keyaomoizors a. food roii fol said mastor s hee z, a dyiving element forsaid. roll mo -into "so simiftoo into and out of engagement 'Wiijil feedmil, 2, 13in oiod bracke on which said driving; eiemeiot is s'apporied,a goal mounted. conoontriogiv with gear being in continuous cirivingvcoumsctime.

' id feed 2:01} driving ei nionflz oven 1 m" 2-- .T' moiign M12;braoiioi be 51 o 210 oisooonam 5m driving element filo feed r011, camsurfaoo the braoko, ajv'or the cam [he bracket, o no she i'ever orbaking *bhe bmokoo io a emen b out of oper oior for ing zoizmllizio3compr ng oype-izsy ooiuzm 1/ for oontroiiing o oration of the keyactuators, a 226; roll for said master sheet; a driving oiament i012 ami011% of engagement with sai l feed roii a pivoted brackef on whichdriving oiomeat is supported, and a gear mounted indopemieniiy of butconoentricaiiy with the of sai i pivofied imaoket, said gear beifioontinuous driving connection Wit}! said feefi r011 driving element evenhou h the bracket be shifted to ciisooiimect tho oriving eiomeni; fromoil.

15?. Ai o; tic ope'mtor for ype'wriicing machines, sohigarising-type-koyactuating means, wo master hosts for oontroiiinv the oporwon of the key7 4'- 42 roll for em: master onset ii'lJGl ior each food 1:. Gig

mg movable the bi c in iwo direo tions, and when moved in \iiiiiliErection, oci" to up $129 dr ve of one moo v masiisz" sheet aocon'iingto which tion the ioyer is mow? moo. inos oompris vino? .n means, two maammo.

the axis of said pivo'ized brook saiii' s'uppo' 'is one of soio iii-iiES, o lever ongog mg boih of sand sold lover being brackets movable withthe i :1 I eta 1n chrooiions,

sheet and aiiscomloci, drive of the-other mas ior shoot acoorciing'towhich direction the 1' is mo aoi and a finger piece connested to fichelove!" Where y Eilfi some may be set 5o affair-i; olive off onoor thoother master the key actuaiors, a 'ii'eed 2:011

fol eaoh masioi' -eet, a driver for each. food s roll, continuous sourceof power in oon-- "river-s, two piv mo. of which ssupof said i L gas,

motion 11 530i oiloiiv mounteo,

, of saw.

ocuioo, 5mg A. i 1.. moms? SHQQR:

1' Y a u u a e orno 01 me oboe mmraver and men each master '50 moverheei. connect up the airive for tho oontfoiiod. iz'om the .5

other i v v awfiomatio operator for typewritv 'means, 'iwo moszer shoeisfor controlling op muoz of the key actuators, (iiiving motions forefiactmg Ki 11g oonnecions b tho drive oi o i; (Ern e nprising ty oo keyastam'tingj moans, v I sheet for controlling the opor oi file myactuators, a delivery roii or sheet: sooroo of power oonneo o ID" fooingtho sheet f, e*'z1oii ating moans, a pulley saiai iieiivehy F011, amovable iJi'lCiiS :1 pulley carried by said brackofi and iaoit eci topuiiey on the delivery roll, anci means moving said bracket oonneo'o thepolio-y that a: a. 43 1 mono opeiabol typeWi-i ing nos, compzisiog typokey actuating;

1 ion in either diroofiion, octmg conimo z up the dr ver oi one master5,,

tic ogaemior for bypewriiover to siioliosj macaw-as oomprismg typo-key'acuatihe feed of said,- v and manually controlled fmoon s driving 7

